Controlling-valve for traps.



No. 724,318. PATENTED MAR. 3l, 1903.

' R. G. MGAULEY.

CONTROLLING VALVE FOR 4TRAPS.

APPLIUATION FILED 0013.13, 1902.

No MODEL. 2 SHEETS-SHEET. 1.

llli'hlllll mw .fa/5f' PATENTED MAR. 3l, 1903.

R. G. MGAULE. CONTROLLING VALVE FOR TRAPS.

APPLICATION FILED `00T.13| 1902.

UNITED STATES PATENT OFFICE.

ROBERT G. MCAULEY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE MCAULEYAUTOMATIC TRAP COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OFPENNSYLVANIA.

CONTRO'LLlNG-VALVE FOR TRAPS.

`SZPECIilGATION forming part of Letters Patent N o. 724,318, dated March31, 1903.

Application led October 13, 1902. Serial No. 127,152. (No model.)

To all 1071/071?, it may concern:

Be it known that I, ROBERT G. MCAULEY, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inControlling- Valves for Traps, of vwhich the following is aspecification, reference being had therein to the accompanying drawings,forming part of xo this specification, in which- Figure 1 is a verticalsectional view of a gravity trap provided with my improved valve. Fig. 2is a similar view showing the inner receptacle tilted, establishingcommu- :5 nication with the piston of the outlet-valve. Figs. 3 and 4are vertical sectional views of the valve on an enlarged scale, showingit in closed and open positions,respectively. Figs. and 6 are horizontalsectional views indizo cated by the lines V V and VI VI of Fig. 4.

My invention refers to the class of traps for collecting and disposingof water of condensation or other liquid accumulation consisting of avesseladapted to receive the liquid and z 5 to be automatically emptiedby the operation of a gravity-actuated interior bucket adapted to openthe valve mechanism, whereby the exhaust-port is opened and closed, soas to permit a constant fluid-pressure to discharge 3o the contents ofthe trap;

The presentinvention relates more particularly to the valve controllingthe flow of water from the vessel, the other portions of theconstruction conforming to the subject-matter of a similar invention forwhich Letters Patent were granted to me on January 7, 1902, No. 690,658.

Referring now to the drawings, 2 represents the main shell of the trap,to the top 3 of 4o which or at any suitable location above thewater-line is connected a pipe 4, communieating with any source offluid-pressure, as a steam or gas conductor. Connected with the shell 2also at any convenient location above the water-line is a water-supplyor drain pipe leading from any point in the line of pipe or vessel, bywhich pipe water of condensation is carried to the interior of the trap,and for the purpose of deflecting such water down- 5o wardly, so that itwill not iow directly into the bucket, I employ an arresting ordeflecting shield 7, which shrouds the inner end of the opening, asshown.

Pivotally mounted, as by a hinge-joint S, upon the inner side of thecase is a bucket 9, located about centrally of the interior, the openingat the top of which is preferably slanted downwardly toward one side, sothat the water as it rises Within the case around the exterior of thebucket will ow over such 6o lower side, and so ill it. The bucket byreason of its buoyancy will iioat upon the water and be maintained in anerected position until so filled, when it will tip downwardly away fromthe hinge 8, as shown in Fig. 2, permitting the water to flow into itand to be eX- hausted from the case down to the level of such lower edgeof the bucket. For the purpose of facilitating the tilting action aWeight 10 of suitable size may be attached to the in- 7o ner upper edgeof the bucket in any convenient manner. K

11 is au outlet-pipe extended down within the interior of the case andof the bucket to within a short distance of its bottom when raised, asin Fig. 1, and said outlet-pipe eX- tends through the side of thecaseand communicates with the upper portion of a valvechamber 12 above avertically-moving valve located within the case and adapted when 8oraised, as shown in Fig. 2, to establish communication from the interiorof the bucket through pipe 11 and valve-case 12 and its outlet-opening13, which may lead to any suitable point of discharge.

The shell 12 of the valve is preferably formed in one piece and isprovided at its upper portion, somewhat below the level of the sideconnection for pipe 11, with a valve-seat 14, there being an annularspace around said 9o valve-seat for the purpose of receiving the uppersupplemental pressure portion of the valve hereinafter described.

15 is a valve mounted on or formed integral with a stem 16, adapted torest upon seat 14 95 and also close communication therethrough, and thevalve is provided with an upper eX- tended head 16 of considerable area,so that in the passage of the water through the pipe 11 it will be rstdelivered downwardly against roo the top of said head 16 and will alwaysexert a pressure thereon, tending to seat the valve. The ,annular space17 around the valve enlargement is somewhat restricted, so that itscross-area is less than the cross-area of the -valve-opening leading tooutlet 13, 'whereby the excess pressure from above will always act toseat the valve.

In the upper portion of the valve-case is a cap18, provided with acentral cylindrical chamber 19, into which projects a plunger.v

In the lower portion of the case below the' outlet-opening 13 isprovided a pistou-chainber 22, the lower portion of which is closed by aplug 23, having a central opening 24, with which connects a pipe 25,communicating, preferably, through an angle-valve with port 26, leadingto the interior of the case. The middle portion of plug 23 with openingA24 is extended upwardly within the interior of the piston-chamber,practically illing the space in the interior of the piston, and isprovided with lateral ports 27, below which water of condensation willcollect and provide a water seal extending above the lower portion ofthe piston at all times, so as to act as a cushion through which thesteam-pressure is exerted against its submerged periphery.

28 is the piston, provided with a series of annular recesses 29, adaptedto be filled with water, so as to provide Apacking for the piston,preferably having an upwardly-extending sleeve 30 and being connected tothe pis-` ton-stem 16 in any suitable manner, as by screw-threads and.nut 31.

A port 32 communicates with the interior of the pistou-chamber and withthe outletopening, by which any accumulation of water or othercounteracting pressure may be freely discharged.

33 is a drain-cock tapped into the side of the valve-case immediatelyabove the valveseat for the purpose of drawing 0E water of condensationand preventing freezing.

The inner end of the port 26 terminates in a valve-seat 34, adapted tobe closed by valve 35, which valve is formed or made on the iuner end ofa reciprocating stem 36, mounted in suitable bearings in the interior ofthe case. The valve-stem 36 is provided with adjustable abutments 87,between which a bifurcated arm 38 is adapted to play and to move thevalve-rod in or out by action against the abutments. This bifurcated armis attached to and extends from the edge of the bucket 9, as shown, andin operation when the bucket is buoyantly held up the valve will bemaintained closed, relieving pressure from piston 28 by cutting olf theupper supply-pressure from above, keeping the outlet -valve 15 seatedand allowing water of condensation to ll the interior of the valve-caseup to the level of port 27, thus submerging the lower endof the piston28. When, however, water in the interior of the case has risensufficiently high to overflow into the bucket and tip it by reason ofthe specific gravity of the bucket itself and its counterweight,thetipping action of the bucket and the corresponding movement of thevbifurcated arm 38 upon the valve 35 will open it and establish pressureto piston 28, raising valve 15,whereupon thepressure within the casethrough pipe 4 will force the fluid contents of the bucket outwardlythrough pipe 11 until the water-level in the bucket is lowered down tothe lower end of pipe 11,when the bucket will rise upwardly, closing thevalve and maintaining it so closed until the operation is againrepeated.

The case 2 is provided at its lower point with a drain-cock 39, by whichthe case may be emptied and accumulation ot dust or other foreignmaterial drained oif. A feature of advantage in the construction is thatall such accumulation of foreign material will settle to the bottom ofthe case, the clear water only rising and flowing into the bucket, sothat no foreign material will pass through the pipe 1l to theoutlet-valve, whereby it is constantly maintained in a clear andoperative condition. I also prefer to connect pipe 25 with plug 2 3 by acoupling 40, having a reduced drainingport 41 by which water ofcondensation may escape.

The device may be used to drain any pipe or vessel where a pressure mayoe had, and in its operation it is very eflicient and reliable,obviating the objections of other kinds of traps for this purpose, andit will be found by those accustomed to this class of mechanism to 'givecontinued and satisfactory results.

The construction of the valve for controlling the escape of water fromthe interior is very simple, compact, and effective in operation, whilethe advantages of the extended area of the valve insuring seating, thewatercushion in the upper end of the stem, the means for covering thelower end of the piston, together with the other features of theconstruction, contribute to the general eiiciency and advantage of theinvention.

rlhe apparatus as a whole is very simple in construction, compact insize, symmetrical in form, and easy to build, while being reliable andefficient in continued operation and not liable to get out of order.

While the construction of the valve, as well as the other portions ofthe invention, is well adapted to the objects in view, it will bereadily understood that various -changes and modifications may be madein its construction or design by the skilled mechanic without departingfrom the invention as embodied in the following claims.

lOf L IOS IIO

What I claim is- Y 1. A controllin g device for traps consisting of ashell pro-vided with a valve-seat, an inletopening above said seat, anoutlet-openingA below the same, a valve adapted to fit upon the seatprovided with a supplemental peripheral pressure-surface, and a pistonconnected with the Valve, with means for applying fluid-pressurethereto, substantially as set forth.

2. A controlling-valve provided with a hollow piston, a piston-chambertherefor, and a pressure-inlet conduit extendingabove the bottom of thechamber, substantially as set forth.

3. A controlling-valve provided with a piston, a chamber therefor, and apressure-inlet conduit extending above the bottom of the chamber andprovided with lateral ports, substantially as set forth.

4. A controlling-valve provided with a piston, a chamber therefor havinga water-seal basin, and a pressure-inlet conduit terminating above thewater-level thereof, substantially as set forth. A

5. A controlling device comprising a case provided with a seat, aninlet-opening on one side of the seat, an outlet-opening on the otherside thereof, a valve provided with a supplemental peripheralpressure-surface on the 'inlet side, and means for actuating the valve,substantially as set forth.

6. A controlling device comprising a case provided with a seat, aninlet-opening on one side of the seat, an outlet-opening on the otherside thereof, a valve provided with asupplemental peripheral pressuresurface on the inlet side, and a piston secured to the stem of thevalve, with means for applying pressure to the piston, substantially asset forth.

7. A-controlling device comprising a case provided with a seat, aninlet-opening on one side of the seat, an outlet-openin g on the otherside thereof, a valve provided with a supplemental peripheralpressure-surface on the inlet side, and a hollow piston secured to thestem of the valve, with means for applying pressure to the interior ofthe piston, substantially as set forth.

8. A controlling device comprising acase provided with a seat, aninlet-opening on one' side of the seat, an outlet-opening on theotherside thereof, a valve provided with a supplemental pressure-surface onthe inlet side, and an extended perforated plunger adapted to enter acorresponding recess in the case, with means for moving the valve,substantially as set forth.

9. A controlling device comprising a case provided with a seat, aninlet-opening on one side of the seat, an outlet-opening and an eX-haust-passage on the other side thereof, a Valve provided with asupplemental peripheral pressure-surface on the inlet side, an eX-tended cushioning-plunger, a recess therefor, a piston-chamber, acommunicating port between the piston-chamber and the exhaustpassage, apiston connected with the valve, and means for supplying pressure to thepiston-chamber, substantially as set forth.

10. In combination with a trap provided with a pivotallymounted vessel,an exhaustpipe, and a pressure-valve actuated by movement of the vessel:a controlling-valve case communicating with the exhaustpipe, a valvetherein provided with a supplemental peripheral pressure-surface and apiston, a piston-chamber, and a connection between the piston-chamberand th`e pressure-valve, substantially as set forth.

l1. In combination with a trap provided with a pivotally-mounted vessel,an exhaustpi pe, and apressure-valve actuated by movement of the vessel:a controlling-valve case communicating with the eXhaust-pipe,a valvetherein provided with a supplemental peripheral pressure-surface and apiston, a piston chamber, a water seal cavity therein, and a connectionbetween the piston-chamber and the pressure-valve, substantially as setforth.

In testimony whereof I affix my signature in presence of two witnesses.

ROBERT G. MCAULEY.

Witnesses:

JAS. J. MCAFEE, C. M. CLARKE.

